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Researchers identified the black substance as a mixture of burnt rubber, oil and feces.

Black Smudge on Diary Page Reveals 1907 Arctic Expedition’s Tragic End

New analysis suggests explorer Jørgen Brønlund spent his final hours trying—and failing—to light a petroleum burner

The Parkes Telescope in Australia

Astronomers Discover Mysterious Radio Signal From Proxima Centauri

Scientists searching for aliens are trying to understand the signal’s origins

L to R: Leonor Villa, Melania Lasilla and Julia Claveras, three of the ten women executed by a fascist firing squad in August 1936

Remembering the Oft-Overlooked Women Victims of the Spanish Civil War

Archaeologists in northeastern Spain recently unearthed the remains of ten individuals kidnapped and executed in 1936

People may have eventually accepted the mixed alloys as legitimate currency.

Ancient Canaanites Added Arsenic to Copper to Create Counterfeit Currency

The toxic chemical gave the metal a luminous sheen, enabling forgers to pass off cheap alloys as silver

Longer days signal to birds when they should breed and lay their new clutch of eggs, and they match up their timing so that their chicks are born when the springtime's bounty is at its peak.

Light Pollution Is Causing Birds to Nest Earlier, Mitigating Some Effects of Climate Change

But two wrongs don’t make a right, as both problems are altering the birds’ biology

Encounters with the giant oarfish—the world's largest bony fish—may have inspired sailors to tell tales about fantastical sea serpents.

Virtual Travel

Meet the Real Animals Behind Mermaids, Dragons and Other Mythical Creatures

You can now take a virtual tour of a “Harry Potter”–inspired exhibition exploring the origins of fantastical beings

The flower of a newly discovered orchid species from Madagascar called Gastrodia agnicellus. It's looks are, shall we say, unconventional.

Behold the World’s Ugliest Orchid, According to Botanists

Surprisingly, the plant’s fleshy, brown flowers don’t smell so bad

America's eastern monarch population has fallen by about 80 percent, and the western population by 99 percent, but the Fish and Wildlife Service doesn't grant endangered status to specific populations of invertebrate species.

Why Monarch Butterflies Aren’t Getting Endangered Species Status

Monarch butterflies qualify for protections, but 161 other species have higher priority

Though several animal species like chimps, crows and elephants have been documented using tools, it's pretty rare in the insect world.

New Research

To Compete With the Big Guys, Tiny Crickets Fashion Leafy Megaphones to Blast Their Mating Calls

Using leaves can make male crickets’ calls three times louder, upping their chances of attracting a female

The researchers planted some peppers alone in pots, and others about four inches away from a second plant.

New Research

How Pepper Plants Pick the Perfect Path for Putting Down Roots

Two plants in the same pot must find a way to share the water and nutrients in the soil

Authorities grew suspicious of the man after he claimed to have found 14,000 Roman coins in a Belgian orchard.

Officials Seize 27,400 Artifacts Looted by a Single French Treasure Hunter

The unidentified man accumulated a sizable collection of ancient coins, jewelry, accessories and sculptures

Two sequential photos showing a kangaroo alternating its gaze between a box full of food it can't open and a human.

New Research

Kangaroos Communicate With Humans Like Dogs in Experiments

The study suggests people may have previously underestimated the communication abilities of other non-domesticated species

The team's findings reflect the toll of the ivory trade and habitat destruction.

Ivory From 16th-Century Shipwreck Yields Clues to African Elephants’ Decline

Researchers extracted DNA from tusks found in the wreckage of the “Bom Jesus,” a treasure-laden vessel that sank in 1533

This summer, activists in Richmond transformed a monument to Robert E. Lee (right) into a work of protest art (left).

Virginia Museum Will Lead Efforts to Reimagine Richmond Avenue Once Lined With Confederate Monuments

Governor Ralph Northam’s proposed budget for the coming fiscal year earmarks $11 million for the project

The Library of Congress recently completed a major digitization effort, making collections of 23 U.S. presidents' papers available online for study. From left: Calvin Coolidge, Abraham Lincoln, George Washington, Benjamin Harrison and Thomas Jefferson; behind: Jefferson's June 1776 draft of the Declaration of Independence

Library of Congress’ Presidential Papers, From Washington’s Geometry Notes to Wilson’s Love Letters, Are Now Online

Four newly added collections mark the conclusion of a two-decade digitization project

A previous iteration of the museum focused on preserving memories of small-town Southern Jewish life as many Jews moved to larger cities. The new center will expand to cover the broader Southern Jewish experience.

Planned Museum Will Spotlight Jewish Communities in the American South

Set to open in New Orleans next year, the cultural institution will showcase stories spanning 300 years and 13 states

InSight was sent on a mission to answer questions about the Red Planet's crust, mantle and core, known as the "inner space."

Mars InSight Lander Offers a Sneak Peek at the Red Planet’s Inner Layers

The robotic explorer was sent to Mars to study its formation—and the data is now making its way back to Earth

A new, noninvasive technique allows researchers to study mummies without damaging them.

Researchers Reveal Mummy’s Surprising Contents Without Unwrapping It

Technique described in a new study combines X-ray and CT scans to examine remains without damaging them

The photograph shows an area about 10,000 miles wide, a small portion of the Sun which is 864,000 miles wide

Brilliant Sunspot Photo Captures the Beginning of a New Solar Cycle

The Inouye Solar Telescope captured the unprecedentedly detailed image of a 3,700-mile-wide sunspot on January 28

An artist's rendering of Ubirajara jubatus, a newly described dinosaur species featuring two sets of rods sticking out of its shoulders and a mane of fluffy proto-feathers.

New Research

With a Mane and Strange Shoulder Rods, This New Dinosaur Was Quite a ‘Little Show-Off’

The chicken-sized carnivore was found in Brazil and researchers say it may have been quite colorful

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